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Glossary

24 二月, 2015 - 09:28

dictionary: A mapping from a set of keys to their corresponding values.

hashtable: The algorithm used to implement Python dictionaries.

hash function: A function used by a hashtable to compute the location for a key.

histogram: A set of counters.

implementation: A way of performing a computation.

item: Another name for a key-value pair.

key: An object that appears in a dictionary as the first part of a key-value pair.

key-value pair: The representation of the mapping from a key to a value.

lookup: A dictionary operation that takes a key and finds the corresponding value.

nested loops: When there is one or more loops “inside” of another loop. The inner loop runs to completion each time the outer loop runs once.

value: An object that appears in a dictionary as the second part of a key-value pair. This is more specific than our previous use of the word “value.”